Draft:Untitled Adventure Time film

An untitled Adventure Time film is an upcoming American fantasy animated film based on the animated television series Adventure Time. It will be produced by Cartoon Network Studios.

Attempts for an Adventure Time movie started in the early-to-mid 2010s, first with a television movie that evolved into an episode from the sixth season and later with a theatrical film that never got officially announced. A film based on the show was announced in June 2024 during the Annecy Animation Festival alongside other spin-offs from the franchise.

Past attempts
In the middle of the fifth season of Adventure Time, the showrunners attempted to make a 45-minute television film, but development was difficult due to much work in need of "getting in shape", as many of the script's individual parts were interesting but didn't hang together right and they couldn't find a way to figure out how to make it all work. Jesse Moynihan storyboarded the movie's first ten minutes with Steve Wolfhard helping him to clean up the drawings before the project's abandonment. Unwilling to leave his work abandoned after months once he accepted the film wasn't gonna be produced, Moynihan pushed for his ideas to be "cannibalized" into episodes, leading to part of the film becoming the sixth season episode "Something Big".

In February 2015, a theatrical film adaptation of Adventure Time was reported to be in development by Warner Bros., Cartoon Network Studios, Frederator Films, Vertigo Entertainment and Warner Bros. Animation, with Chris McKay and Roy Lee set to produce, series creator Pendleton Ward attached to executive produce and write it and Jon Berg and Cate Adams overseeing the project. In October 2015, series producer/showrunner Adam Muto confirmed that Ward was working on the film's premise, but that there was "nothing official to announce yet". In July 2018, Muto noted that the film "was never officially announced". In August 2018, Muto stated that the finale of the series wouldn't affect a potential film adaptatio nor would the series finale lead directly into one, noting that "all the lore and stuff would not work for a first time viewer" and suggesting that a film based on the show would have to old well on its own to be successful.

Development
In June 2024, during the Annecy Animation Festival, it was announced that Cartoon Network Studios was developing three new Adventure Time properties, among them a feature film, with Muto as well as Steven Universe creator Rebecca Sugar and Over the Garden Wall creator Patrick McHale, who worked on the show prior to creating their owns, involved in the project. The film, titled The Adventure Time Movie, was announced to have Jake the Dog and Finn the Human "embark on their greatest adventure yet", with what they find changing the Land of Ooo entirely.